* {
  margin: 0px;
  padding: 0px;
}
.home {
  width: 1280px;
  height: 3000px;
  margin: 0 auto;
}

/* 顶部区域 */
.home_roof {
  position: relative;
  display: flex;
  justify-content: space-between;
  width: 1280px;
  height: 66px;
  line-height: 66px;
}
.home_roof > div:nth-child(1) > img:nth-child(1) {
  position: absolute;
  top: 12px;
  left: 70px;
}
.home_roof > div:nth-child(1) > img:nth-child(2) {
  position: absolute;
  top: 22px;
  left: 128px;
}
.home_roof > div:nth-child(2) > span:nth-child(1) {
  font-size: 18px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  line-height: 24px;
  color: #0d0d0d;
  margin-right: 84px;
}
.home_roof > div:nth-child(2) > span:nth-child(2) {
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  line-height: 21px;
  color: #41454d;
  margin-right: 70px;
}

/* 背景图片 */
.home_img {
  width: 1280px;
  height: 486px;
  background: url(./images/背景图片.png);
  background-repeat: no-repeat;
  text-align: center;
}
.home_img > div:nth-child(1) {
  font-size: 28px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  line-height: 37px;
  color: #ffffff;
  padding-top: 154px;
}
.home_img > div:nth-child(2) {
  font-size: 20px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  line-height: 26px;
  color: #ffffff;
  margin-top: 10px;
}
.home_img > div:nth-child(3) {
  margin-top: 187px;
}
.home_img > div:nth-child(3) > span {
  display: inline-block;
  width: 39px;
  height: 5px;
  background: #9e9e9e;
}
.home_img > div:nth-child(3) > span:nth-child(1) {
  background-color: #fff;
}

/* 产品与服务 */
.home_service {
  margin-top: 50px;
  text-align: center;
}
/* 物联网智慧园区软硬件平台 */
.home_service > div:nth-child(1) {
  font-size: 36px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  line-height: 47px;
  color: #080f1a;
}
.home_service > div:nth-child(2) > div:nth-child(1) {
  font-size: 20px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  line-height: 26px;
  color: #080f1a;
  margin-top: 16px;
}
.home_service > div:nth-child(2) > div:nth-child(2) {
  font-size: 14px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  line-height: 24px;
  color: #080f1a;
  text-align: left;
  margin-left: 236px;
  margin-top: 32px;
}

.home_service > div:nth-child(2) > div:nth-child(3) {
  margin-top: 50px;
  font-size: 0px;
}

.home_service > div:nth-child(2) > div:nth-child(3) > img {
  width: 398px;
  height: 250px;
  background: #5b5b5b;
  opacity: 1;
  border-radius: 16px;
}
.home_service > div:nth-child(2) > div:nth-child(3) > img:nth-child(2) {
  margin-left: 12px;
}

/* 物联网大数据平台 */
.home_service > div:nth-child(3) > div:nth-child(1) {
  margin-top: 50px;
  font-size: 20px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  line-height: 26px;
  color: #080f1a;
}
.home_service > div:nth-child(3) > div:nth-child(2) {
  text-align: left;
  margin-top: 40px;
}
.home_service > div:nth-child(3) > div:nth-child(2) > img {
  width: 398px;
  height: 250px;
  margin-left: 236px;
}
.home_service > div:nth-child(3) > div:nth-child(2) > div {
  position: relative;
  display: inline-block;
  vertical-align: top;
}
.home_service > div:nth-child(3) > div:nth-child(2) > div > span {
  position: absolute;
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  line-height: 21px;
  color: #080f1a;
  left: 50px;
  top: 52px;
}
.home_service > div:nth-child(3) > div:nth-child(2) > div > p {
  font-size: 14px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  line-height: 24px;
  color: #080f1a;
  margin-left: 50px;
  margin-top: 83px;
}
.home_service > div:nth-child(3) > div:nth-child(3) {
  position: relative;
  text-align: left;
}
.home_service > div:nth-child(3) > div:nth-child(3) > div {
  display: inline-block;
  vertical-align: top;
}
.home_service > div:nth-child(3) > div:nth-child(3) > div > span {
  position: absolute;
  font-size: 16px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  line-height: 21px;
  color: #080f1a;
  top: 64px;
  left: 236px;
}
.home_service > div:nth-child(3) > div:nth-child(3) > div > p {
  font-size: 14px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  line-height: 24px;
  color: #080f1a;
  margin-top: 95px;
  margin-left: 236px;
}
.home_service > div:nth-child(3) > div:nth-child(3) > img {
  width: 398px;
  height: 250px;
  background: #5b5b5b;
  opacity: 1;
  border-radius: 16px;
  margin-left: 50px;
}
.home_service > div:nth-child(4) {
  margin-top: 50px;
}
.home_service > div:nth-child(4) > div:nth-child(1) {
  font-size: 20px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  line-height: 26px;
  color: #080f1a;
}
.home_service > div:nth-child(4) > div:nth-child(2) {
  margin-top: 40px;
  text-align: left;
  font-size: 0px;
}
.home_service > div:nth-child(4) > div:nth-child(2) > img {
  width: 398px;
  height: 250px;
  background: #5b5b5b;
  opacity: 1;
  border-radius: 16px;
}
.home_service > div:nth-child(4) > div:nth-child(2) > img:nth-child(1) {
  margin-left: 236px;
  margin-right: 12px;
}
.home_service > div:nth-child(4) > p {
  text-align: left;
  margin-top: 40px;
  margin-left: 236px;
  font-size: 14px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  line-height: 24px;
  color: #080f1a;
}

/* 底部区域 */
.home_base {
  width: 100%;
  height: 405px;
  background: #033265;
  margin-top: 70px;
  position: relative;
}
.home_base > div > div {
  display: inline-block;
}

.home_base > div:nth-child(1) > div:nth-child(1) > img:nth-child(1) {
  position: absolute;
  top: 54px;
  left: 154px;
}
.home_base > div:nth-child(1) > div:nth-child(1) > img:nth-child(2) {
  position: absolute;
  top: 60px;
  left: 221px;
}
.home_base > div:nth-child(1) > div:nth-child(2) {
  padding-left: 626px;
  padding-top: 60px;
}
.home_base > div:nth-child(1) > div:nth-child(2) > div {
  font-size: 18px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  line-height: 24px;
  color: #ffffff;
}

.home_base > div:nth-child(1) > div:nth-child(n + 2) > ul {
  list-style: none;
}
.home_base > div:nth-child(1) > div:nth-child(2) > ul > li {
  font-size: 14px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  line-height: 19px;
  color: #8b8f99;
  margin-top: 18px;
}
.home_base > div:nth-child(1) > div:nth-child(3) {
  margin-left: 156px;
  vertical-align: top;
}
.home_base > div:nth-child(1) > div:nth-child(3) > div {
  margin-top: 60px;
  font-size: 18px;
  font-family: Microsoft YaHei;
  font-weight: bold;
  line-height: 24px;
  color: #ffffff;
}
.home_base > div:nth-child(1) > div:nth-child(3) > ul > li {
  font-size: 14px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  line-height: 19px;
  color: #8b8f99;
  margin-top: 20px;
}

.home_base > div:nth-child(2) {
  margin-top: 72px;
  border: 1px solid #8b8f99;
}

.home_base > div:nth-child(3) {
  margin-top: 40px;
  text-align: center;
  font-size: 14px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  line-height: 19px;
  color: #8b8f99;
}
.home_base > div:nth-child(4) {
  text-align: center;
  margin-top: 20px;
}
.home_base > div:nth-child(4) > span {
  font-size: 14px;
  font-family: Microsoft YaHei;
  font-weight: 400;
  line-height: 19px;
  color: #8b8f99;
}
.home_base > div:nth-child(4) > span:nth-child(2) {
  margin-left: 28px;
}
